Accrued expenses and other long-term liabilities consisted of the following:
| | | As of December 31, | | | | | 2013 | | 2012 | | | ($ in thousands) | | | | | | | | | Accrued expenses: | | | | | | | | | Salaries, bonuses and related benefits | | $ | 450 | | $ | 1,064 | | | Severance (Note 15) | | | 1,502 | | | 354 | | | Professional fees | | | 351 | | | 320 | | | Research and development expenses | | | 1,245 | | | 403 | | | State franchise taxes | | | 190 | | | | | | Ovamed manufacturing rights short-term component (Note 14) | | | 500 | | | | | | Other | | | 192 | | | 44 | | | Total accrued expenses | | $ | 4,430 | | $ | 2,185 | | | Other long-term liabilities: | | | | | | | | | Hercules Note end of term charge (Note 10) | | | 398 | | | 398 | | | Ovamed manufacturing rights long-term component (Note 14) | | | 679 | | | 1,043 | | | Total other long-term liabilities | | $ | 1,077 | | $ | 1,441 | |
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